Two-row cultivator.



A. G. LINDGREN.

TWO-ROW OUL'IIVATOR. APPLICATION FILED 811F130, 190s.

Patented Sept. 20, 1910.

6 SHEETS-SHEET 1.

A. C(LINDGREN.

TWO-ROW UULTIVATOR.

APPLICATION FILED SEPT. a0, 1908.

970,5 1 3, Patented Sept. 20, 1910.

8 SHEETS-SHEET 2.

A. G. LINDGREN.

TWO-ROW CULTIVATOR.

APPLIOATION FILED snmnso, 190a.

Patented Sept. 20, 1910.

6 SHEETS-SHEET 3.

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A. G. LINDGREN.

TWO-ROW CULTIVATOR.

APPLICATION FILED SEPT. so, 1908,

Patented Sept. 20, 1910.

6 SHEETS-SHEET 4.

wi/immo %twa I A. C. LINDGREN.

TWO-ROW GULTIVATOR.

APPLIOATION FILED 832130, 1008.

Patented Sept. 20, 1910.

6 SHEETS-{BERT 6.

I h E H .0 A \Ns a J I. v

A. O. LINDGREN. TWO-ROW GULTIVATOR. APPLICATION FILED SEPT. so, 1908.

970,5 1 3. Patented Sept. 20, 1910.

6 SHEETBBHEET 6.

wi tmeooea I UNITED STATES PATENT OFFICE.

.ALEXUS C. LINDGREN, OF MOLINE, ILLINOIS, ASSIGNOR TO MOLINE ILOW COMPANY, A CORPORATION OF ILLINOIS.

TWO-ROW CULTIVATOR.

Specification of Letters Patent. I Patented Sept. 20, 1910.

Application filed September 30, 1908. Serial No. 455,465.

To .all whom it may concern:

Be it known that I, ALEXUS C. LINDGREN, of Moline, county of Rock Island, and State of Illinois, have invented a new and useful Im rovement in Two-Row Cultivators, of whlch the following is a specification.

This invention relates to wheeled cultivators of the type in which the beams or drag bars are sustained by a wheeled frame in such manner that they may be shifted laterally by the feet of the driver to follow deviations in crooked rows, and is designed for'the cultivation of two rows at one time, such machines being known in the art as two-row .cultivators, and embodying two pairs or sets of beams or cultivating devices, operating respectively on opposite sides of the two rows.

The invention consists of various imovements in machines of this type, which lmprovements are directed more particularly to form and construction of the suporting frame; the manner of mounting the cams thereon, so that they may be shifted laterally; the form and construction of the mechanism for controlling the lateral movefication, and the novel ments of the beams; the means for varying the distance between the two sets of beams; and various other features of construction which will be fully described in this speciparts pointed out in the claims. I

In the accompanying drawings :Fi ure 1 isa top lan view of my machine. Fig. 2 is a rear e evation of the same. Fig. 3 is a front elevation. Fig. 4.- is a side elevation with the near ground wheel removed. Fig.

' i 5 is a longitudinal sectional elevation on the axes, the

line aa of Fig. 1. Fig.5 is a perspective view showing the manner of supporting and adjusting the beams at their forward ends transversely.

Referring to the drawings :-1 represents a wheeled frame comprising a long main axle-member 2, provided on its ends with depending bracket-arms 3, containing vertical lining sockets 1 and 5, in which are loosely mounted the vertical stems 6 of the stub-axles 7, having mounted on their ends ground wheels8, which construction permits the ground wheels to swivel or turn relatively to the axle-member on 'vertical urpose of which will presently appear. T e axle-member is in the form of two, parallel bars 2 disposed on edge and spaced apart by means of thede ending brackets at them ends, which brac (ets are seated and secured between the bars; and by central dependin bracket 9 seated and secured between t e bars at this oint, as shown in Fig. 5, the said axle-member being braced and strengthened by means of a truss rod 10 fixed at its ends in eyes on the upper ends of the end brackets, and extending thence downward between the bars 2 and through the central bracket 9. Connected at their rear ends to the axle-member are two tongues 12, braced and held fixedly in position by means of four brace rods 12, 12*,12, and 12", the rods 12 and 12" being fixed at their rear ends to the outer ends of the axle member, and at their forward ends to the outer sides of the two tongues respectively, while the brace rods 12 and 12 are connected at their rear ends to the axlemember near its center, and at their forward ends to the inner sides of the two tongues respectively, a horizontal frame bar 13 being extended transversely beneath the tongue and brace bars, and fixed firmly thereto, as shown in Fig. 1.

14 represents a drivers seat sustained on the rear end of a seat frame comprising two longitudinally extending bars 14 extending above and resting on the axle-men? ber, with their forward ends fixed to the brace rods 12 and 12 respectively;

15 represents a transversely extending beam supporting member, formed with two arched portions to straddle the two rows of plants, and three depressed horizontal beamattaching portions, two outer ones, 15 and 15 and a long central one, 15, the two inner beams, 16 and 16, being connected with the central depressed portion, while the outer beams 16 and 16 are connected to the outer portions, the connection of said beams with the supporting member bein such that they may slide horizontally t ereon to a limited extent and may also be raised ,and

lowered at their rear ends. The beam supporting member is sustained so as to move transversely back and forth," by means of three suspension straps A, B and G, jointed at their upper ends to the transverse frame bar 13, and pivotally connected at their lower ends to the beam support, the latter being thus suspended from the frame and capable of an oscillating motion transversely, which motion is controlled by the beam-bars, fixed at their forward ends tofeet of the driver through the medium of a foot-lever mechanism presently to be described, by which means he is enabled to shift the beams laterally to follow with certainty the rows of plants under cultivation.

In order that when the beam support is moved laterally, the ground wheels may be turned to cause the machine to follow the direction of the rows, I connect the ends of the beam support with the swiveling wheels by means of longitudinally extending brackets or arms 17 and 17*, the rear ends of which are fixed to the vertical stems of the stub axles, while their forward ends are jointed, by means of vertical pivot'bolts 18 and 18 ,-between rearwardly extending arms 19 on two yoke frames 20, fixed respectively to the ends of the beam support, the brackets 17 and 17 thus forming a parallel motion, whereby the beam support is ided in its oscillations and maintained at all times transversely with reference to the line of draft, thereby causing the beams to maintain their longitudinal alinement, with the cultivating devices facing squarely. in the direction of travel. Asa result of this construction, the oscillations or lateral movements of the beam support will shift the forward ends of the brackets 17 and 17 a and will swivel the vertical stems of the stub-axles in their bearing sockets of the frame, and thereby correspondingly turn the ground wheels to the right or left, as the case may be.

The mechanism by which the driver controls the lateral movements of the beam support, consists of a horizontally arranged foot lever 21 pivoted midway between its ends on a vertical axis on a longitudinally extending link 22, whichlink is in turn pivoted .on a vertical axis to the lower end of the bracket 9 and at its forward endto a bracket plate 22 fixed to the center of the beam support. This foot lever extends outwardly and rearwardly from its point of pivotal connection with the link, and is provided on its 'ends with foot rests for the drivers feet. On opposite sides of its axis, it is connected, by means of two forwardly and outwardly extending rods 23 and 23 with the two arched portions respectively of the beam support, so that when the foot lever is rocked on its axis, it will act to push endwise on the beam support through one of the connecting rods, and pull endwise in the same direction on the beam support through the other connecting rod, with the result that the support will be shifted laterally and will correspondingly shift the beams, the foot lever at the same time moving bodily transversely, by 'reason of its connection with and support by the pivoted link 22, before alluded to. The beams are each in the form of two parallel connecting heads mounted loosely on the depressed portions of the beam support, so that they may be moved laterally on said support,

as above described, and'may be also raised vertically at their rear ends, suitable means being provided for tying or connecting the beams together transversely, and for the time being connecting them with the beam support, so as to prevent a relative motion between the two in the lateral movements of the support, for the purpose of causing the beams to be moved positively with the support. This connection of the parts is effected by the provision of connecting devices 24 be tween the inner beams, which connecting devices are movable laterally with the beam support and which serve as a means for transmitting the motion of the support to the beams. Additional connecting devices 25 are provided between the inner beams and theouter beams of the respective pairs, whereby the motion transmitted to the inner beams will, through these additional connecting devices, be transmitted to the outer beams, with the result that they will all be caused to move together with the beam support when the latter is shiftedtransversely. The connecting devices 24 are so formed as will be presently described that the distance between the two pairs of beams may be varied at will, while the connecting devices 25 are of such form that, while causing the outer beams to move with the inner beams, these devices will admit of an independent adjustment of the outer beams with reference to the inner beams.

Connecting devices 24 for the inner beams comprise two transverse links 24* jointed at their outer ends to the two beams respectively, and formed at their inner ends with holes through which extends a finger2 l on the'forward end of an arm 24; fixed to the lower end of a vertical lever 24 pivoted to a segment frame 24, fixed to and movable with the pivotal link 22, before alluded to, the lever being provided with a locking dog adapted to engage teeth on the segment frame for the purpose of locking the parts in the position adjusted. By the movements of the lever back andforth, the arm 24: will be raised and lowered, and acting on the inner ends of the two transverse links, will draw or fold them together, or extend them outward, thereby correspondingly drawing the two beams together, or separating them,

.or arches 25 jointed at their inner ends to the inner beams, and adjustably connected at their outer ends with the outer beams by means of spring actuated locking pins 25 on the beams, engaging horizontal toothed arms 25 on the outer ends of the yokes, the yokes when locked by the pins causing the outer beams to move with the inner beams,

and when disengaged by the ins, permitner beams. It is seen, therefore, that thesetwo connecting devices 24 and 25, while causing all the beams to be moved positively with the lateral movements of the beam support,

permit of an adjustment of the inner eams to and from each other, carrying with them the outer'beams, and permit also of the adjustment of the outer beams to and from the inner beams independently of each other. The beams are suspended in such manner that they may be raised and lowered independently of each other, and also in unison. The independent control is effected by four hand levers 26, 27, 28 and 29, pivoted to segment frames fixed at intervals, corresponding to the location of the several beams, to a squarearock-shaft 30, extending alon the upper side of the axle-member 2 an mounted at its ends in bearings 30, the said shaft being rocked and adjusted to difierent positions by means of a hand lever 31 fixed to the shaft and provided with a locking dog adapted to engage in notches in a segment frame 31 fixe to the machine frame. The four hand levers 26, 27, 28 and 29 are connected to their respective beams b suspension rods 26* and 27*, etc., joints at their upper ends to the levers and passed at their lower ends through holes in the beams, their lower ends having fixed to them heads which, when the rods are raised, will engage and elevate the beams. Above the beams the ,rods are encircled by spiral springs hearing sides 'of the beams, as a result of which construction, when the hand levers are deressed, the beams will be lowered and subjected to a yielding ressure, and when the hand levers are raise the beams will be elevated. The" beams are raised and lowered in unison by the operation of hand lever 31,

which will rock square shaft 30 and correspondingly rock all the se ents for the individual levers which, an owing to their locked connection with the levers, and the connection of the latter with the beams, will raise and lower the beams together. The elevation of the beams in this manner in unison is assisted by the longitudinal spiral spring 32 connected at its rear end to an arm 33 of the rock shaft, and at its forward end to the frame bar 13.

It will be observed from the construction described that the beams are horizontal from end to-end, being connected at their forward ends to the depressed portions of the beamsupport, to the ends of which, draft links 40 are connected through the medium of the yoke frames 20, as shown in Fig. 4, and'co'nsequently the draft is applied at a low point 1n line with the beams, which will have the result of iving better penetration to the cultivating evices, the fore and aft parallel links on brackets 17, 17 and 22, by which the beam sup ort is connected with the frame and guide in its transverse movements, being inclined downwardly from their rear ends, where they have connection with the elevated axle member, to their forward ends, where they have connection with the de )ressed portions of the beam support.

aving thus described my invention, what I claim is 1. In a wheeled cultivator, the combination with the frame, of a transversely movable beam support, a lever mechanism sustained by the frame and operatively connected with said beam support for shifting the same laterall beams carried by the support and mova le thereon laterally with relation to the support, a connecting member between the frame and beam support movable laterally with the beam su port, and a levermechanism carried by said connectin member and operatively connected with t e beams for adjusting the same laterally on the beam support.

2. In a two-row wheeled cultivator, the combination with a frame, of a single beam support sustained by said frame and movab e bodily as a unit transversely thereof, a lever mechanism for controlling said movements of the beam su port, two pairs of cultivator beams carried by said beam support and movable transversely thereon with reference to the support, a lever mechanism operatively connected with the inner beam each pair for adjusting said pairs to and from each other simultaneously, and adjustable connections between the individual' each pair may be varied independently, the

entire set of beams ma be shifted transversel in their adjuste position.

3. n a wheeled cultivator, the combination with the frame, of a transversely movable unitary beam support, beams carried by the support, a horizontally disposed foot lever mounted to rock on an axis between its ends, and connecting devices between said foot lever respectively on opposite sides of its axis and the beam su port; whereby by the actuation of the foot ever, the beam support is subjected to both a pulling and p'us ing force acting in the SHJIIG'dII'GCtIOII.

4. In a wheeled cultivator, the combination with the frame, of the transversely movable unitary beam support, beams connected with the sup ort, a horizontally arranged foot lever ivoted between its ends to rock on a vertica' axis, and rods connected at their rear ends to the foot lever on opposite sides of its axis respectively, and at their forward ends to the beam support; whereby by the actuation of the foot lever, the beam support is subjected to both a pulling and pushing force acting in the same direction.

5. In a wheeled cultivator, the combina tion with the frame, of a transversely movable unitary beam support, beams connected therewith, a horizontally disposed foot lever pivoted betweenits ends to rock on a vertical axis, and connecting rods between the foot lever and/the beam support, said rods having their rear ends connected with the foot lever on opposite sides of the axis, whence they extend outwardly from each other, and have their forward ends connected with the beam support.

6. In a wheeled cultivator, the combination with the frame, of a unitary beam support provided with elevated portions to straddle the plants and depressed portions for the attachment of the beams, beams connected with the depressed portions of the .support,a horizontally disposed foot lever plvoted between its ends to rock on a vertical axis, and rods connected with the lever on opposite sides of its axis respectively, and with the elevated. portions of the beam support. 1 7. In a wheeled cultivator, the combination/with the frame, of a transversely movable beam support, beams connected therewith, a lqngitudinally extending link 22 ,having pivotal connection with the frame and with the. beam support, a foot lever mounted on said link, and connections between the foot lever and the beam support.

8'. In a wheeled cultivator, the combination with the frame, of a transversely movable beam support longitudinally extendlng brackets 17 and 1 a connecting the ends of the beam support pivotally with the frame, a central longitudinally extending l1nk 22 pivotally connected with the frame and w1th the beam support, and a foot lever mechanism mounted on the central link and operatively connected with the beam support.-

9. In a wheeled cultivator, the-combination with the frame, of the transversely movable beam support, beams carried thereby, yoke frames 20 on the ends of the sup port, vertical links pivoted to the machine frame and; to the yoke frames, rearwardly extending arms on the yoke frames, and longitudinally extending parallel brackets pivoted at their rear ends on the machlne frame and at their forward ends between the arms on the yoke frames; whereby the beam support in its shifting movements will be maintained parallel with the axle,

thereby causing the cultivator beams to face squarely in the line of draft.

'10. In a wheeled cultivator, the combination ,with the frame, of the transversely movable beam support beams carriedby said support and movable thereon transversely, a longitudinally extending link pivoted to the frameand to the beam support, and movable with the latter transversely devices connecting the beams and mounted on the transversely movable longitudinal link, said connecting devices being constructed to be. actuated to move the beams to and from each other, and means for controlling the transverse movements of the beam support.

11. In a wheeled cultivator, the combina-' preserve their relations to the innerbeams;

12. In a wheeled cultivator, the combination with the frame, of the transversely movable beam support, two pairs of beams mounted on said support, means for controlling the transverse movements of the beam support, a longitudinally extending link pivotally connected with the frame and with the beam support, and movable therewith transversely devices sustained by said link and connecting the inner beams together, and connections between the inner and outer beams. 5

13. In a wheeled cultivator, the combination with the frame, of the transverse beam support, beams mounted on said support -and movable transversely thereon, transversely extending links jointed at their outer ends to the beams and jointed together at the inner ends, and means'for varying the angular relations of the links.

14. In a wheeled cultivator, the combination with the frame, of the transverse beam.

support, beamsmounted thereon and movable transversely with relation to the support, transversely extending links pivoted at their outer ends .to the beams on longitudinal axes and jointed together at their inner ends on a longitudinal axis, and means for raising and lowering the inner jointed ends of the links.

15. In a wheeled cultivator, the combination with the frame, of a-transverse beam support, beams sustained by. said support and movable thereon transversely, transversely extending links jointed at their outer 'endsto the beams on longitudinal axes, a hand lever, and a vertically movable arm on the lever jointed to the inner ends of the links. I

16. In a wheeled cultivator, the combination with-the frame, of a transverse beam support, beams sustained by the support and movable transversely thereon, transversely extending links pivoted at their outer ends to the beams on longitudinal axes, and a lever mechanism jointed to the inner ends of the beams on a longitudinal axis.

17. In a wheeled cultivator, the combination with the frame, of a transversely movable beam support, forwardly and downwardly extending brackets having a pivotal connection at their upper ends with the frame on vertical axes, and at their forward lower ends having pivotal connection with the beam support, draft connections attached to the beam support at the points of 5 the beam support, and means for controlling the lateral movements of the support.

In testimony whereof I hereunto set my 20 hand this 14th day of September, 1908, in the presence of two-attesting witnesses.

ALEXUS C. LINDGREN. Witnesses:

J. L. IRVING, C. A. BANISLER. 

